Machine for making paper and like cups.



, E.A.STRATTON. MAGH INE FOR MAKING PAPER AND LIKE CUPS.

APPLIOATIQN FILED MAB.5, 1913.

Patented Oct. 7, 1913.v

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APPLICATION FILED MAE. 5, 1913.

Patnted 0012.7,1913.

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APPLICATION FILED MAR. 5, 1913. mww

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Win/3e)? Wa n an EGBERT ARTHUR STRATTON,

. 1/ OF LONDON, ENGLAND, ASSIGNOE T MANSELL, HUNT,

CATTY 8t COMPANY LIMITED, 0]? LONDON, ENGLAND.

MACHINE FOR MAKING PAPER AND LIKE CUPS.

intens Specification of Letters-Patent.

Patented Get. 7, 11.913.

Application filed March 5, 1913. Serial No. 752,161.

To all whom it may concern:

Be it known that I, Eesnn'r ARTHUR STRA'I'ION, subject of the King ofGreat Britain, residing at Grassy Road, Hampstead, London, England, haveinvented new and useful Improvements in Machines for Making Paper andthe like Cups, of which the following is a specification.

creasing and This invention relates to machines for plaiting disks ofmaterial into cup-shaped form and for turning over the borders thereof,for soufli cups and analogous articles. I

The principal feature of the invention consists in means for turningover the border of a plaited cup so as to stiffen or reinforce the cupand lock the plaits.

Furtherufea tures ofthe invention consist in the combination in onemachine of the ward, and is then turned completely over so It. 't the;edge is directed toward the bottom 0 the cup. The so turned-over borderis 'then again splayedoutward, the fold of the previous turn is pinchedinto a close crease and finally the border is again turned completelyover, so that the creased fold of the previous turn is directed more orless toward the bottom of the cup while the actual edge of the materialbecomes directed away from,

the bottom.

machine for creasing and plaiting disks of material into cup-shaped formand for turning over the borders thereof, is illustrated on theaccompanying drawings, in which Figure 1 is an elevation of the entirema chine. Fig. 2 is a developed sectional elevation of the magazine, thecreasing and plaiting tools, the turning over tools and the deliverytube. Fig. 3 is a plan of the magazine. Fig. 4 is an inverted plan ofthe machine taken along the line 47-4: of Fig. 1. Fig. 5 is an invertedplan of the machine taken along the line 55 of Fig. 1.

Referring more particularly to Fig. 2: A disk of paper is lifted bythe-suction head a. from the top of a pile in a magazine 6 and droppedon to the creasing and plaiting socket c. The disk is therein creasedand laited by the plaiting plunger cl in the well nown manner, cup isthen liftedby the plaiting plunger d and is dropped or pushed oil. sameinto a two-part socket a formed with a shallow conical border c. Thecup, when forced home into upper edge slightly beyond the junction ofthe shallow conical border of the socket with the remainder of thesocket which is slightly tapered to fit the cup. A plunger f then entersthe cup and forces same home into the socket 6, closing the plaits..upper portion f of this plunger f is abruptly conical to fit the shallowconical or beveled bordere of the socket e, whereby the protrudingportion of the cup is splayed outward. The plunger f then recedes partially from the socket c and is accom anied by the cup, owing to a liner0 whic provides the inner surface of the lower portion of the socket ebeing simultaneously partially ejected from the body of the socket 6.Then the abruptly conical portion f of the plunger 1, which is mountedas a sleeve on the latter, is displaced over the edge of the liner ewhereby the splayed border of the cup is folded over the latter. Theplunger f is then wholly withdrawn from the socket e, while the liner 6returns thereto; during the withdrawal, however, the sleeve portion 1 ofthe plunger f still surrounds the turned-over border. of the cup,thereby holding the latter'on the plunger f until above anothersocket-g. When above this second socket g, the sleeve f moves away fromthe turned-over border of the cup and an ejector head f in the plunger fforces the cup ofi the latter, to fall into the second socket g.-

The second socket g differs from the first in the liner 9 beingstationary and the outer portion displaceable to accompany theplunger-sleeve it of its plunger h, and in the liner protrudin beyondthe remainder g? of the socket, thedoorder of which latter 9 is a planesurface transverse to the axis of the socket g instead of being beveled.The outer or sleeve portion 7& of the plunger it has correspondingly atransverse plane end surface." 7 7 When the cup is forced home by theplunger h into the second socket 7, its turned- The creased and plaitedThethe socket, protrudes with its vacuum and slightly over borderprotrudes just above the edge of'the stationary liner 9 and is bent overthe latter by a shoulder h on the inner portion [L2 of the plunger 71,which then stops. The sleeve portion h of the plunger it, however,continues to move until it has forced the border of the cup outwardperpendicular to the axis of the cup. The outer portion 9 of the socketg is then displaced toward the sleeve portion k of the plunger h andpinches the outstanding border of the cup, thereby sharply creasing theprevious turn-over. The sleeve portion 7& of the plunger h and outerportion of the socket 9 then move together toward the base of the socket9, thereby completing the second turn-over. The cup is then carried byand forced off the second plunger 72. by an ejector head it in themanner des'cribed'in respect to the first plunger f.

In embodying the above described turning-over mechanism in a completemachine formaking plaited' cups, the several sockets conveniently arearranged radially around an axis on a table 2' which is alternatelyrocked in opposite directions about this axis. The sockets are situatedat such angular distances apart that at the extreme ends of the travelof the table each socket is transferred from beneath one plunger tobeneath an adjacent plunger or its equivalent.

Taken in the order of the sequence of operations, there are mounted onthe rocking table 2', the following elements, see Figs. 1 and 2:Themagazine I) to hold a pile of disks, which are spring-pressed upward,the top disk being held down by fingers b (Fig. 3) engaging over theedgethereof; the plaiting socket c'as described in my prior patent;

the first turning-over socket e; the second vacuum is created by a pumpZ7 connected to the section head a by a flexible tube a. The suctionhead a is then raised and holds the disk while the table 2' isangular-1y displaced bringing the laiting socket o beneath thesuction-heat a. The latter then descends and, on the ump 7c relievingthe lowing off the disk, the latter is deposited on the mouth of theplaiting socket 0. The table '5 moves back again carrying the disk tobeneath the plaiting plunger d, which then descends and plaits the diskinto cup-shape. The plaiting plunger rl ilurising lifts the cup, owingto the plaits being interlocked with the ribs is keyed to the shaft m.

as above explained thrusts ofi? the cup into this second socket g.- Thetable z'once more rocks in the contrary direction, whereby the secondturning-over socket g comes beneath the second turning-over plunger 7.These having carried out'their functions, the table 2 once more moves tobring the delivery tube 7' beneath the second turning-over plunger h,which casts off the cup to fall through the tube 7'.

I t should be understood that several disks in various stages of beingtransformed into the finished product are being operated upon at thesame time, for each time after the table 2' is rocked in the onedirection a fresh disk is picked up by the suction head a and allof theseveral plunger-effected operations take place'on different disks, andeach time after the table 2' is rocked in the reverse ously rotatedthrough a worm-wheel m worm m (Fig. 4), worm spindle m and pulley m. Atthe lower end of the shaft m is a crank n (Fig. l),which,riding in aslot 0 formed in a lever 0, to the free end of which the rod [c of thepump plunger is connected, operates the pump 70. To obtain a slowsuction and quicker return stroke of the pump plunger, it is arrangedthat the path of the crank is nearer the free end of the lever 0 duringthe former and nearer the pivot 0 of the lever 0 during the latterstroke. Above the crank m, a disk 9 (Fig. On the under surface of thisdisk p protrude two cams or ramps P1, 1; which periodically force downward the one end of roller-provided levers,

1 the other ends of which are thereby which carry at their upper endsthe p ste 25 oil the E it is; co iected c o nount I ed "free y upon tireJollllizli s l vcted beneath the fremc-plete e is weeiec lever c. On oneside of its piece tl'lis lever ois connected by it link o to lever oconnected to the table, and. on the other side of its pivot e", thelever o is connected by e link '0" to s second rocking lever o pivotedbeneath the frame-plate, This second lever carries a roller 42 on thereverse side of its ivot o to its connection to the link 12, and thefirst rocking lever 0 also carries a roller o upon the pivot whichconnects it to the link '0 connected to the table lever o. The abovementioned cams t 13 respectively, periodically each strike end displaceone of these rollers o, o and thereby rock the table 6.

Above the table i-the shaft m carries a cam drum w the cam-grooves 'w ofwhich operate the several com ouiicl plungers (Z, and h and the suctioniced c, by nieces of rollers m, spindles and sleeves 3,, end theedge-cams z of w icli operate the ejector -heads d, f and h by mecns ofrollers a, rocking bars 2 collars e cotters s end spindles 2?.

It is obvious that the seversi organs can be in multiple, for instance,each plunger, socket and suction heed be in duplicate Moreover theborders the cups may be turned over once only to form what are termeddrinking cups. I

The several plungers end scclzets are in terchongeeble with others of"erect sizes without alteration of the timing oi. the cores.

The magazine is also adaptable to clifi'er ent sizes of disks. Itconsists of a series of illcrs b clamped in radial slots in a base lateb and connected e ring 5* which on its inner border is formed with theaforesaid fin ers Z). This ring can be interchanged Wit others oidifferent sizes. A spring pressed lifter b is mounted in the base plateif of the magazine. The plate of the lifter 7) is radiallv slotted topermit adjustment oi the pillars if.

l. In a. machine for turning over the borders of cups formed fromplliited disks of material, at turning-over plunger, re, turning-oversocket, is second turning-over pluner, a second turning-over socket,means into and from 'ing relative u plunger-s for displacing sold.plungcrs said sockets and means for e l. transverse (llSPiMERHQS -i, o;and sockets.

2. In a meciiine nuitcrial into cop-shaped. term ing over the borderslhoreo plunger, 2i piloting; secl plunger, a. Luz: displacing minplungier piiliting disks of and for turnit Dllllilllg Wm ior H cub inmachine for pleitilig (lists of mi.- terisl into cupshe ed form, and forem ing over the loom tlilercoif, a. pissing plunger, e plaiting socket,turning'bver plunger, s, turning-over socket, c second turninggever cluegel, a second semi-newer socket, means for displacing said plungers intoand from said sockets and meens for e fecting relative transversedisplacement of said plungers and sockets,

4. In a machine for turnin over the borders of cups formed from p citeddisks of material, it two-pert plunger, an ejector in said two-partplunger, s twopert socket, 22 second two-pert plunger, an ejector insaid second two-pert plunger,- 5]. second twoport socket, mecns fordisplacing said plungers into end'from said sockets means for effectingrelative transverse disp. aceinent of said plungers and sockets andmeans for protruding said ejectors.

5. In mechin'e for pleiting disks of metericl into cupshsped form andfor turning over the borders thereof, c pleiting plunger, cm ejector in.seid pleiting plunger, c socket, s two-pert plunger, en ejector in. saidtvm psrt plunger, e two-pert socket, said plungers means for displacinginto and from said socket mews for efiecting relative transversedisplacement 0:? sold for proa pleiting socket, e e ector in said, twoorplunger, it twopcrt socket, e second two-pert plunger, an ejector insaid second twoqaart plunger, at second twopert socket, means fordisplacing said pluiigzcrs into and from seid sockets, means {oreliecting relative transverse placement of said plungers and sockets :2.cl means for protruding said ejcctors. 7. in o. machine for ilsitmtcriel into cn' rshziped ions and ing over the borders the-reel, table,it megszine for :i fQlle. clicks on. said icicle, s -'=.uction heedabove sci-1i m J' I e socket on said teol lllitltllif-' said plcitingsee, c, en ejector ing plunger, s two-pert socket on table, a two-yoreabove Ell im-vo pert said twill} t plunger, art socket on'scitl tiible,c

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two-pert two-pert suction h in said fol-eit-- t plunger shove soldsecond 1 "Ji l Iilllli.

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opposite directions to transfer stid maga- I name to this specificationin the presence of zinie freim aliid tofbeneath saidbsuctioil hlfad twosubscribing Witnesses. an sai sec ets rom and to eneat t eir wrespective lungers and to and from said I EGBLRT ARTHUR STRATCION' 5 adacent p ungers and suction head and Witnesses:

means for protruding said ejectors. H. D. JAMESON, In testimony whereofI have signed my R. A. SMITH.

